Our family has several favourites

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Olive Garden comes in at #1. Their pasta can't be beat. And their breadsticks are divine. About $15 pp for a meal that includes some sort of meat, which includes unlimited soup or salad and breadsticks. Drinks are extra.
TGI Fridays is #2. They have a deal where you can get a full-sized appetizer, choice of entree (from a select list) and dessert for $12.99. Fantastic value and GOOD FOOD. Try the Reese's Peanut Butter pie ....OMG its amazing

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Chili's, Friendlys and Cracker Barrel all come in tied for #3. At Chili's you can get an appetizer to share and two entrees for $20. Friendly's has tons of combos that are $9.99 to $11.99 that include your entree, a drink and a fancy ice cream sundae. Cracker Barrel is good, old-fashioned food (complete with homemade buscuits) and runs about $10-$12 per entree.
Golden Corral has everything....literally EVERYTHING....on their buffet. Even cooked-to-order steak, macaroni and cheese, and chicken at
breakfast. Awesome dessert line up, fresh baked rolls, and a chocolate wonderfall (dip cookies, marshmallows, etc.). About $13 pp for dinner, I think.
For cheap (but still good) pizza, Cici's is also a favourite. About $7 with a drink for an all you can eat buffet that includes soup, pasta, pizza and dessert. Cooks will make a pizza for you if you don't see your favourite on the buffet line up (just ask). There are tons of buy one, get one free coupons around too.
Checkers is good for fast food and very, very cheap. We love Popeyes for fried chicken.
Steak & Shake is our favourite for burgers. Priced like fast food but you get table service. A fantastic assortment of shakes that are sooooo good and ENORMOUS. Shakes are half price between 2 and 4 a.m. and pm, and will be about $1.75 each during the half-price happy hour.